<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<BR>----------------------------------
<BR>
<c:if test="${sessionScope.CATEGORIA=='1' }">
  ${sessionScope.cat1 }
</c:if>
<c:if test="${sessionScope.CATEGORIA=='2' }">
  ${sessionScope.cat2 }
</c:if>
<c:if test="${sessionScope.CATEGORIA=='3' }">
  ${sessionScope.cat3 }
</c:if>